SLUSF03
august 2023
TPS51385
PRODUCTION DATA
1
1
Features
2
Applications
3
Description
4
Revision History
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
PWM Operation and D-CAP3™ Control Mode
7.3.2
VCC LDO
7.3.3
Soft Start
7.3.4
Enable Control
7.3.5
Power Good
7.3.6
Overcurrent Protection and Undervoltage Protection
7.3.7
UVLO Protection
7.3.8
Overvoltage Protection
7.3.9
Output Voltage Discharge
7.3.10
Thermal Shutdown
7.4
Device Functional Modes
7.4.1
MODE Pin
7.4.2
Out-of-Audio™ Mode
7.4.3
Power Save Mode (PSM)
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.2.1
External Component Selection
8.2.2.1.1
Inductor Selection
8.2.2.1.2
Output Capacitor Selection
8.2.2.1.3
Input Capacitor Selection
8.2.3
Application Curves
8.3
Power Supply Recommendations
8.4
Layout
8.4.1
Layout Guidelines
8.4.2
Layout Example
9
Device and Documentation Support
9.1
Device Support
9.1.1
Third-Party Products Disclaimer
9.2
Receiving Notification of Documentation Updates
9.3
Support Resources
9.4
Trademarks
9.5
Electrostatic Discharge Caution
9.6
Glossary
10
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
RJN|12
MPSS141
Thermal pad, mechanical data (Package|Pins)
Orderable Information
slusf03_oa
slusf03_pm
1
Features
4.5-V to 24-V input voltage range
0.6-V to 5.5-V output voltage range
Integrated 22-mΩ and 11-mΩ MOSFETs
Support 7-A continuous I
OUT
84-μA low quiescent current
±1% reference voltage (0.6 V) at 25°C
±1.5% reference voltage (0.6 V) at –40°C to 125°C
1-MHz switching frequency
D-CAP3™
control mode for fast transient response
Supports POSCAP and all MLCC output capacitor
Adjustable soft start and internal 1-ms soft start
Selectable PSM and
Out-of-Audio™
(OOA) mode under light load and supports on-the-fly change
Large duty operation support
Power-good indicator to monitor output voltage
Latched output OV and UV protection
Non-latched UVLO and OT protection
Cycle-by-cycle overcurrent protection
Built-in output discharge feature
Small 2.00-mm × 3.00-mm
HotRod™
QFN package
Pin-to-pin compatible with
TPS51386
(24 V, 8 A)